Removable bridge for teeth.



H. A. GOLLOBIN & N. A. BORNSTEIN.

. REMOVABLE BRIDGE FOR TEETH.

APPLIGATION .FILED 11110.11, 1911. I 1,062,233, Patented May 20, 1913.

frwenfors d hm To an whom'it may concernaetsaass. i

mafia; Gamma .A D NEwronjA. EoRnsrEm, or NEWARK, NEW. JERSEY, ASSIG-NORS TO :rH nEn'rAI. DENTURE mrnovEMENr COMPANY, or NEWK,

NEW JERSEY, A conronhrronor NEW JERSEY.

4 nEMovA BmneE Eon 'rEE'rn.

Be it 'known that we, HARRY A. Gonno I BIN, a'subject of the Russian Empire, and

rovement in 'Re movab1e Bridges -Te eth,'of which the following 1s a specly g NEWTON A. Bon'Ns'rEIN, a citizen of the j UnitedSt'ates, andresidents of Newark, 1nthe' county of Essex and tate of New Jer-v sey, have invented a new and useful Im-.

'fication;

, This invention. relates to certain 1mprovement s in bridges for teeth, and has I more part-icularly for its object to provide means for, attaching removable bridges to abutments in the mouth in such a manner that the bridges will be held very rigidly by trictio engagement with the abut inents. v

A practical embodiment of our "invention' is represented in the accompanying drawings, in which Figure 1 represents a section through the roof of a mouth with-a bridge in its position therein, Fig. 2 is a similar view with the bridge partly removed, the abutment hinge member being broken away to more clearly illustrate the interlocking of the bridge hinge member therewith, Fig. 3 is an inverted-plan View of the parts shown in Fig. 1,. Fig. 4 is an enlarged detail side view, partly in section showing the hinge connection between the bridge and abutment, Fig. 5 is a transverse section taken in the plane of theline AA,of Fig. 4, Fig. 6. is an enlarged detail 'plan view partly in section of the hinge connection between 'the bridge and abutment, Fig. 7

an. enlarged detail side view partly in section showingthe connection between the free end of the bridge and its abutment, Fig. 8 is a section taken in the plane of the line B-Bof Fig. 7, Fig. 9 is an enlarged detail view partly in plan and partly in section showing the connection between the free end of the bridge and its abutment, Fig. 10 is a plan view of theabutment showing the recess for receiving the free end of the bridge, Fig. 11 is aplan view showing the split tongue at the tree 'end otthe bridge, Fig. 12 is a plan view of the abutment showing the recess for receiving the hinge end of the bridge, and Fig.

13 is a plan View of the split tongue at the hinge end of the'bridge.

for

.which form the abutments forthe bridge are denoted by 2 and 3. The bridge of teethfor filling the space between the abutments is denoted by 4c. The abutmenthinge member 5.is provided with a curved'undercut recess 6. The hinge member 7 consti tuting the inner end of the bridge 4 is provided with a curved split tongue 8 which.

projects lengthwise of the bridge and is arranged to have an interlocking and frictional engagement with the walls of the recess 6 -1n, the hinge abutment member 5 when the bridge is inserted into its position withinv the mouth. The other abutment 3 is provided with a member 9 having a recess 10 open through the end or" the same. The free end of the bridge 4 constitutes a member 11 having a split tongue 12 which projects lengthwise of the bridge and is arranged to have a frictional engagement ,with. the walls of the recess 10 in the abutment member 9 when the bridge is in position within the mouth. a

To insure atight-fitof the bridge when inserted into position within the month, one branch of the split tongue 12 is provided with a Wedge shaped outer surface 13 arranged to coact with a wedge-shaped enlargement 14 of the recess 10 for the purpose of crowding the bridge into its position. This wedging action between the abutment member and bridge member serves to hold the abutment member against going forced away from the bridge mem- It will be seen that a means for attaching removable bridges to abutments in the mouth constructed substantially as herein described is extremely simple and easily manipulated, the strength required to remove the bridge being readily regulated byincreasing and decreasing the frictional engagement of the split tongues with the walls of their respective recesses, by spreading to a greatei or lesseixextent the branches of the split tongues.

What we claim is 1. Means for attaching a removable bridge to an abutment in the mouth comprising an abutment member having a recess inthe crown portion of the tooth and a bridge'member having a flat split tongue of z Specification o'f Jtetters Patent. Patented May 20, 1913.

, Application-filed December ll, 1911'. Serial No. 664,954.

' resilient'n'iaterial, the branches of the tongue of the tongue being arranged to be forced out of their normal position to enter the said recess and havlng an'lnterlocklng and frictional engagement with the walls thereoff Means for attaching a removable bridge to abutments in the mouth comprising abutment members having recesses in the crown portions of the teeth and bridge members having fiat split tongues of resilient material, the branches of the tongue of one bridge member being arranged to be forced out of their normal position to enter the recess of one abutment member and having an-interlocking and frictional engagement therewith and the branches of the tongue of the other bridge member being arranged to be forced out of their normal position to enter the recess of the other abutment member and frictionally engage the walls thereof. 4. Means for attaching a removable bridge to abutments in the mouth comprising abutment members having recesses in the crown portions of the teeth and bridge members having flat split tongues, one arranged to have an interlocking and trio-.- tional engagement with the Walls of the recess of one abutmentmember and the other arranged to have a frictional engagement.

abutment member, the last-named tongue and recess also having a wedge connection.

In testimony that We claim the foregoing as our invention, we have signed our names 4 in presence of two Witnesses, this seventh day of December 1911.

HARRY A. GOLLOBIN'. NEWTON A. BORNSTEIN. Witnesses F. GEORGE BARRY, C. S. SUNDGREN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentl,

- Washington, D. G.

with the walls of the recess of the other 40' 

